Find the 5th term in the sequence a1 = 3, a2 = 3 and an = an-1 + an-2 ; a>2
6
9
15
24
If 2x + 1, x2 + x + 1 and 3x2 - 3x + 3 are consecutive terms of an A.P then x =
1, 2
2, 3
3, 4
5, 6
Common ratio of G.P am-n, am, am+n.........is
am
a-m
an
a-n
Common ratio of the series 1/4 + 1/2 + 1.........is 256?
10th term
11th term
12th term
9th term
If -2/7, x, -7/2 are in G.P, then x =
1
-1
± 1
None of these
Next term in the series 3/16 + 1/18 + 1/12 +.........is
1/24
1/27
1/18
1/29
If in A.P Sn = Pn2 and Sm= pm2 where S denotes the sum of r terms of the A.P then Sp is equal to
1/2 p3
mnp
p3
(m+n)p2
The sequence an = 3n - 2 is an A.P, then a and d are
1, 4
4, 7
1, 3
7, 10
If tn denotes the nth term of the series 2+3+6+11+18----------then t50 is
492-1
492
502+1
492+2
The sequence an = 2n + 1 is an A.P Then the common difference is
5
7
3
2